Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$\sin\ \theta+\cos\ \theta=\sqrt{2}\sin(\theta+\frac{\pi}{4})$$

Solve for θ

$\theta \in \mathrm{R}$

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